ISSN: 2265-6294

IMPROVING EFFICIENCY: POWER FACTOR CORRECTION OF THREE-PHASE PWM AC CHOPPER-FED INDUCTION MOTOR DRIVE SYSTEM THROUGH HBCC TECHNIQUE

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MATHANGI SRIKANTH, GAJULA PRANAYA, PALETI SATHISH, PALETI SATHISH

Abstract

This study proposes a novel approach to controlling an induction motor (IM) powered by a three-phase alternating current chopper with variable pulse width. The primary purpose of the proposed control technique is to improve the IM drive system's input power factor correction (PFC) under a variety of operating scenarios. The hysteresis band current control (HBCC) approach is used to replace three-phase supply currents with reference currents produced in phase with the supply voltages. This results in a phaseshift capacitor (PFC). The proposed control scheme consists of two independent loops, known as the inner loop and outer loop. The output of the outside loop is the supply reference current level from the speed or beginning controller. The inside loop's output is the ac chopper's PWM signals. The recommended ac chopper consists of four IGBTs and two PWM gate signals, resulting in fewer active semiconductor switches. So, the method under consideration is very effective, dependable, user-centered, and low-cost. We demonstrate how the power system works and analyze it quantitatively. When designing the elements of the input LC filter, frequency flexibility is taken into account. After modeling the IM drive system in MATLAB/SIMULINK, the lab version was developed and tested exhaustively. The results of the experiments and simulations demonstrate that the proposed control mechanism is effective and trustworthy.

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